Heat transfer, in packed and fluidized beds

Johan T. Padding, Niels G. Deen, EAJ.F. (Frank) PeteK, andJ.AM. (Hans) Kuipers, Euler-Lagrange Modeling of the Hydrodynamics of Dense Multiphase Flows Qinfu Hou, Jieqing Gan, Zongyan Zhou, and Aibing Y u. Particle Scale Study of Heat Transfer in Packed and Fluidized Beds... 

Particle Scale Study of Heat Transfer in Packed and Fluidized Beds... 

The combined CFD-DEM approach, incorporated with heat transfer models of convection, conduction, and radiation, has been developed and can be used in the study of heat transfer in packed and fluidized beds. It has various advantages over the conventional experimental techniques and continuum simulation approaches. For example, the detailed conductive heat transfer between particles can be examined and the factors such as local particle-fluid structure and materials properties in determining heat transfer can be investigated. 

Notably, the approach has taken into account almost aU the known heat transfer mechanisms including particle-fluid convection, particle-particle conduction, and radiative heat transfer between solid particles and surrounding environment. It can be tested through various comparisons of the predicted and measured results. The approach has a good capability in describing heat transfer in packed and fluidized beds at a particle scale. 

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